The Australian National University
Research School of Physics and Engineering
ANU College of Physical Sciences
Search for
Printer Friendly Version of this Document
Dr Maarten Vos

Position Senior Fellow
Department(s) Atomic and Molecular Physics Laboratories
Qualifications MSc PhD Gröningen
Phone 54985*
Email
Office Cockcroft (East) 4 C4.05
Webpage http://physics.anu.edu.au/ampl/research/high.php
Biography

Maarten Vos studied experimental physics at Groningen University.  His PhD in Groningen (1987) was focussed on ion implantation and ion channeling.  Afterwards Vos did a post-doc in the group of John Weaver at the University of Minnesota (electron spectroscopy of interfaces) followed by a post-doc in the group of Ian Mitchell at University of Western Ontario, London,  Canada (ion beam studies of surfaces).

In 1992 Vos took up a position  with the Electronic structure of Matter center at the Flinders University of South Australia (headed by Erich Weigold and Ian McCarthy) exploring the possibilities of electron momentum spectroscopy (EMS) of thin films.  Since 1998 this project was continued at the Australian National University, but in recent years his interest has shifted somewhat to different flavours  of high-energy electron spectroscopy, which can be done in a  unique way using the (somewhat modified)  EMS spectrometer.

Research Interests

The current focus of my interest is the understanding of the interaction of high-energy electrons with matter, and developing the spectroscopic tools required for testing our understanding in this field.

More specific topics include (but are not limited) to tefollowing:

-Electronic structure of materials

-recoil effects in electron scattering

-High-energy electron spectroscopy

-Thin film analysis

-Spectrometer development

 

Available Student Projects
Suitable for: 3rd Year, PhB, Honours, PhD/Masters, Vacation Scholars
Supervisor: Dr M Vos
What information is contained in the spectra and angular distributions of electrons scattered at high energies from surfaces? Now such measurements are possible with sub-eV resolution, we are discovering a wide range of phenomena buried in these spectra. Can we understand them, and can we develop such experiments into a novel analytical technique? This is the challenge of this research.
Suitable for: PhB, Honours, PhD/Masters
Supervisor: Dr M Vos
Recent theory predicts intricate line shapes of the spectra of keV electrons scattered from molecules over large angles. Can we establish if these predictions are correct? Similar momentum transfer collisions are studied in neutron scattering experiments using neutrons with energies of several eV. The theory developed here appears different, but are they deep down the same? These are the basic questions we aim to answer.
Recent Publications
Went Michael, Vos Maarten
The role of absorption in large-angle elastic scattering
Journal of Electron Spectroscopy and Related Phenomena 169 (2009)
Vos Maarten, Went Michael
Elastic electron scattering from hydrogen molecules at high-momentum transfer
Journal of Physics B: Atomic Molecular and Optical Physics 42 (2009)
Vos Maarten, Went Michael, Kayanuma Y., Tanaka S., Takata Y., Mayers J.
Comparison of recoil effects in graphite as observed by photoemission electron scattering and neutron scattering
Physical Review B - Condensed Matter and Materials 78 (2008)
Vos Maarten, Went Michael, Cooper G., Chatzidimitriou-Dreismann C
Elastic electron scattering from methane at high momentum transfer
Journal of Physics B: Atomic Molecular and Optical Physics 41 (2008)

Show All Publications

* When dialing an ANU extension from outside the university:
  • (02) 612 XXXXX (within Australia)
  • +61 2 612 XXXXX (outside Australia)
Where XXXXX is the 5 digit extension number